190-02291-06 Rev. 2
AFMS
– GFC 500 Autopilot in Textron 182 Series
Page 3
–7
HEADING DATA SOURCE FAILURE
1. Autopilot ............................................................................................ SELECT different lateral mode
NOTE
Track information will be displayed on the G5.
Without a heading source to the navigator, GPSS will not be provided to the autopilot for
heading legs. Navigator map cannot be oriented heading up.
ELEVATOR MISTRIM (AUTOTRIM)
(Amber TRIM UP or TRIM DOWN displayed on the G5.)
Do not attempt to overpower the autopilot in the event of a pitch mistrim. The autopilot servo
will oppose pilot input and will cause pitch trim to run opposite the direction of pilot input. This
will lead to a significant out-of-trim condition, resulting in large control wheel force when
disengaging the autopilot.
NOTE
Indicates a mistrim of the elevator while the autopilot is engaged.
If a pitch trim servo is not installed, refer to the normal procedures section of this AFMS, MANUAL
PITCH TRIM WITH AUTOPILOT ENGAGED. If a pitch trim servo is installed, the autopilot will
normally trim the airplane as required. However, during rapid acceleration, deceleration,
configuration changes, or near either end of the elevator trim limits, momentary illumination of
this message may occur. If the autopilot is disconnected while this message is displayed, high
elevator control forces are possible.
If a pitch trim servo is not installed:
1. Refer to the normal procedures section of this AFMS, MANUAL PITCH TRIM WITH AUTOPILOT
ENGAGED.
If a pitch trim servo is installed:
NOTE
Momentary display of the TRIM UP or TRIM DOWN message during configuration changes or
large airspeed changes is normal.
1. Control Wheel ............................................................................................................. GRIP FIRMLY
Be prepared for significant sustained control forces in the direction of the mistrim annunciation.
For example, TRIM DOWN indicates nose down control wheel force will be required upon
autopilot disconnect.
2. AP DISC / TRIM INT Button .........................................................................PRESS AND RELEASE
WARNING
WARNING
Содержание GFC 500
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